| 摘要: |
| 面向新一代无线通信网络,研究基于MIMO-OFDM技术的多跳中继网络的容量及端到端吞吐量优化方案.在Lognormal-Rayleigh阴影复合衰落信道环境中,使用注水算法分配功率,分析对系统容量和多跳中继系统端到端吞吐量的影响.仿真结果表明:使用注水算法对多跳MIMO-OFDM系统中各跳子载波对应的子信道进行功率分配,可以显著提高系统吞吐量. |
| 关键词: 多跳MIMO-OFDM中继系统 拉格朗日乘子法 注水算法 端到端吞吐量 |
| DOI： |
| 分类号: |
| 基金项目:03国家科技重大专项项目(2012ZX03001013-004) |
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| Study on a resource allocation scheme in multi-hop MIMO-OFDM systems over lognormal-rayleigh compound channels |
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LIU Jun
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School of Information Science and Technology,Fudan University
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| Abstract: |
| For new generation wireless communication networks,this paper studies the optimization of the capacity and end-to-end throughput of the MIMO-OFDM based multi-hop relay systems.A water-filling power allocation method is proposed to improve the channel capacity and the throughput of the MIMO-OFDM system based multi-hop relay system in the Lognormal-Rayleigh shadowing compound channels.Simulations on the capacity and throughput show that the water-filling algorithm can improve the system throughput effectively in the MIMO-OFDM multi-hop relay system. |
| Key words: MIMO-OFDM based multi-hop relay system Lagrange multipliers water-filling algorithm end-to-end throughput |
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